It is timing, correct? You may test negative, be exposed as soon as you leave the doctors office, and the assumption would be that you don’t have the virus.
Also how long does it take for the test to be done. Days? A week?
And how often do you have to be retested?
Actually, it shouldn't be baffling at all. I love this site, but it's clear to me that the average IQ here has declined by about 20 points since I joined in late 2000.
“Also how long does it take for the test to be done. Days? A week?”
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https://www.abbott.com/corpnewsroom/product-and-innovation/detect-covid-19-in-as-little-as-5-minutes.html